Machine for cutting and scoring box-blanks.



M. P. DAVEN. MACHINE FOR CUTTING AND SCORING BOX BLANKS. APPLICATIONFILED MAY 17. I9l3. RENEWED DEC. 21. I916.

Pafented July 31, 1917.

5 SHEETS SHEET I. E:

M. P. DAVLN.

MACHINE FOR CUTTING AND SCORING BOX BLANKS. APPLICATION FILED MAY 17,I913. RENEWED DEC. 21. I916.

1,235,293. Patented July 31, 1917.

5 SHEETS-SHEET 2.

M" (Kai W4" M P. DAVEN'.

MACHINE FOR CUTTING AND SCORING BOX BLANKS.

APPLICATION men MAY I7. 1913 RENEWED DEC. 21.1916.

5 SHEETS-SHEET 3.

Patented July 31, 1917.

A r 7 g #1475 /fifly w M. P. DAVEN.

MACHINE FOR CUTTING AND SCORING BOX BLANKS.

APPLICATION mu) MAY I7: m3. RENEWED DEC. 21.1916.

Patented July 31, 1917.

5 SHEETS-SHEET 4.

M. P. DAVEN. MACHINE FOR CUTTING AND SCORING BOX BLANKS. APPLICATIONFiLED MAY IT, 1933! RENEWED DEC. 21. HHS- -11 1,235,293.,

' nnrrnn stress rarnn'r ensues.

MICHAEL E. DAVEN, OF DALLAS,

TEXAS, ASSIGNOB, BY DIRECT AND 'MESNE ASSIGN- MENTS, OF ONE-FOURTH TOAI".MEN TRAXLER, ONE-FOURTH TO JACKSON 3'. OWEN,

ONE-FDUK'LH T0 JO$EPH R CONNGR, AND ONE-FOURTH WELL, ALL OF ST. LOUIS,MISSOURI.

T0 FREDERICK L. CORN- MACHINE FOR CUTTING AND SCORING BOX-BLANKS.

Specification of Letters Patent.

Patented July 31, 191'7.

Original application filed. August 29, 1912, Serial No. 717,717. Dividedand this application filed May 17,

1913, Serial No. 768,342. Renewed December 21, 1916. Serial No. 138,283.

a citizen of the United States, and resident Dallas county, Texas, haveinof Dallas,

new and useful Improvevented certain ments in Machines for Cutting andScoring Box-Blanks, of which the following is a specification containinga full, clear, and exact description, reference being had to theaccompanying drawings, forming a part hereof.

My invention relates to improvements in machines for cutting and scoringbox blanks, and relates particularly to that class of machines forcutting and scoring boX blanks in Which rotating elements are e1nployedfor the various operations, and a machine which will in one cycle ofoperation perform either scoring or cutting operations at anglesrelative to each other.

lhe primary object of my invention is to construct a machine in whichscoring, cutting and other devices necessary to form a complete blankare rotated to engage with a piece of material and arranged in suchmanner. that a complete blank may formed in each cycle of operation ofthe machine.

A further object of my invention is to construct a machine provided withrotating elements arranged to act upon the material in such manner thatcutting,- scoring and other like operations at angles relative to eachother may be made in one cycle of operation.

A further object of my invention is to construct a single machine whichwill receive an irregular shaped piece of material and treat it in suchmanner that a blank may be made from which a box may be formed.

A still further object of my invention is to construct a single .machineprovided With rotating elements which will. first cut, score orotherwise treat the material in one direction, then out, score or treatthe material in lines at an angle to the first cutting, scoring ortreating.

A further and more specific object of my invention is to construct amachine in which the cutting, scoring and other devices may bedetachably secured in place, in order that their lines of operation mayvary as to length and character.

This is a divisional application from the one filed by me on August 29,1912, serially numbered 717,717.

lVith the above purposes in viewmy invention consists in certain novelfeatures of construction and arrangement of parts as will be hereinaftermore fully described, pointed out in the claims and illustrated by theaccompanying drawings, in which Figure 1 is a plan of thecompletemachine;

Fig. 2 is an elevation of the complete machine;

Fig. 3 is a longitudinal sectional elevation of the machine taken on theline 3-3 of Fig. 1;

Fig. 4 is a transverse sectional elevation taken on the line 4-4 of Fig.1, and illustrates the longitudinal cutting devices;

Fig. 5 is a detail sectional elevation show.- ing' a pair of thetransverse cutting tools in a position at the initial point of cutting,

and in dotted lines illustrates the positions knife or othertool-carrier to one of the disks which rotates with the driven shaft;

Fig. 8 shows in diagram a blank after it has been acted upon by themachine;

Fig. 9 is a plan of one of the transverse cutting knives;

Fig. 10 is a face view of the knife illustrated in Fig. 9;

Fig. 11 shows the initial cutting end of the knife;

Fig. 12 is the knife;

Fig. 13 illustrates in elevation a modified final cutting end of theReferring by numerals to the accompany-.

' ing drawings:

15 designates the frame of the machine carrying at its one end a table16 arranged to support a stack of pieces of material.

Fixed upon the upper face of the table 16, adjacent its right hand endis a vertical wall 17 secured atits ends, and between its ends spacedapart from the upper face of the table 16.

Secured to the table 16 adjacent its side margins are the vertical walls18 which are laterally adjustable relative to the table by means of theset screws 19 and the slots 20 formed in the table.

The walls 17 and 18 form a hopper to receive and retain the pieces ofmaterial in proper feeding position.

Extended transversely of the machine and supported in the frame 15 is adriving shaft 21, preferably located beneath the right hand end of thetable 16. and carried by the shaft 21 is a pulley 22 arranged to beconnected with power.

The numeral :23 designates a shaft rotatably supported in the framepreferably to the right of and in a plane beneath the driving shaft 21.

The numeral 21 designates a pinion secured to rotate upon and with theshaft 21, and 25 designates a gear wheel secured upon the shaft 23 andin mesh with the pinion 2 1.

The numeral 213 designates a carrier having spaced apart collars 27which are arranged to be secured upon and to rotate with the shaft 23.

In the drawings I illustrate four of such carriers, all mounted upon thesame shaft and all of which are identical. except for the arrangement ofthe collars.

The outer margins of each of the carriers 26 are. provided with recessesarranged to receive tools, such as a knife 29 or an anvil 30. a vRotatably mounted in the frame 15, immediately above the shaft 23, is ashaft 31 and carried thereby is gear wheel 32 arranged to mesh with thegear wheel 25.

Supported upon the shaft 31 is a plurality of carriers 33, each havingspaeedapart collars 34 arranged to embrace the shaft 31. These carriersand collars are identically like the carriers and collars 26 and 27supported 'on the shaft 23,

Secured in a pair of the carriers 33 are knives 35 which are identicallylike the "shafts 38 and 39 arranged one above the other, and each ofwhich occupies about the same horizontal plane as the shafts 23 and 31.

Secured to rotate upon the shafts 38 and 39 are the gear wheels 40 and11 which intermesh.

Arranged betweenthe shafts 31, 3S

and 39 is a stub-shaft 42 arranged to sup-' port a pinion 43, which.inte-rmeshes with the gear wheel 25 and also with the gear wheel 10 inorder that the shafts and 38 are rotated in one direction, and theshafts 31 and 39 rotated in'the opposite direction from the shafts 23and 38.

Supported by the shafts 3S and 39, adjacent their ends within themachine frame, are the resizing disks 44:.

These resizing disks are adjust-able length wise of their shafts bymeans of set screws, in order to properly size the finished piece ofmaterial.

Mounted upon the shafts 3S and 39, between the resizing disks, are thedisks 15 adjiistably secured to the shafts by means of set screws 16,and carried by each of the disks 45 are the segmental tools. such aslongitudinal cutting tools t? and the longitudinal scoring tools 48. i

The innermost margins of the tools are recessed. and the recessedportions carry set screws 19, in order that the tools may be readilydetached from the disk and in order and depth of score desired.

Each tool-carrier, whether it be atransverse tool-carrier or alongitudinal tool-carrier, is arranged to receive both a cutting tooland a scoring tool.

One of the transverse -t0ol-carriers is equipped with tools in order toform the transverse cuts A and B and the transverse scores C, while thelongitudinal tool-carriers are equipped with tools in order to form thelongitudinal cuts D and the longitudinal scores E.

One of the pairs of transverse cutting tools is continuous for the widthof the piece of material, in order to form the resizing transverse cutsF.

Each of the transverse cutting tools comprises a substantially straight,rectangular body portion 50 arranged to be seated in the recess of acarrier.

At one end of the tool, the cutting edge 51 is in advance of the bodyportion, and at the opposite end the cutting edge is-in the plane of thebody of the tool.

In order that there be clearness between the complementary knives, thereis a longitudinal tapering channel 52. These channels have greatestdepth at the initial cutting ends of the knives and vanish to zero atthe final cutting ends of the knives.

For the reason that the cutting edge at one end of the knife is inadvance of the cutting edge at the other end of the knife, regardless ofits length, the transverse cutting will progress laterally synchronouslywith the longitudinal progression of the material, in order that a truetransverse shear is performed.

Iii Figs. 13, 14 and 15 there is illustrated a longitudinal cutting andscoring device which comprises a disk 53 secured to rotate with one ofthe shafts 38 and 39. One face of the disk 53 is annnlarly recessed toreceive a ring 54, the peripheries of the ring and disk formingcompanion scoring flanges.

Leading from the recess which receives the ring is a segmental recessarranged to receive a cutting tool 55, and formed in the ring is asegmental recess arranged to receive a cutting tool 56. a

The bodyv of the ring 54: has greater thickness than the recess in whichit is seated, in order that its outer face will project beyond the planeof the body of the disk.

The numeral .57 designates a clamping plate attached to the disk byscrews 58, in

order to hold the ring 54 against a rcual I movement relative to thedisk.

If, for any reason, it be desired to vary the lead of the knife securedto the disk, the disk may be rotated relative to its supporting shaftand. if it be desired to vary the arcual separation of the knives 55 and56, the plate 57 is loosened to permit of the ring 5t being rotatedrelative to the disk.

By reason of the continuous companion scoring flanges, the operation ofscoring may be accomplished with a varying arcual separation of thecutting tools.

In order that the pieces of material be selected one at a time from thestack, I have provided the feeding mechanism as follows:

Formed in the table 16 there1sa slot 59 which extends lengthwise of thetable and is located preferably-upon. a longitudinal median line.

Arranged for reciprocation within the slot 59 there'is a feed-bar 60,and carried by the feed-bar there is a follower 61 arranged to beadjustable lengthwise relative to the bar.

Carried by the frame 15, beneath the table 16, there is a support 62,and pivotally car-v ried by said support is a rocking lever 63, havingits one end connected with the feedbar 60 by means of a link 64-.

The numeral 65 designates a plunger arranged to slide in bearings 66carried by the machine frame.

One end of the plunger is pivotally connected with the arm of the lever63 opposed to the arm connected .with the feed-bar,

while the other end of the plunger carries a v in a direction opposed tothe operation'effected by the cam 68.

For the reason thatthe feed-bar obtains its movement from the shaft uponwhich the transverse scoring devices are carried,

the timing of thefeeding is necessarily in" relaton to the scoring andcutting operar tions Arranged in the path of travel ieees of material isa series of feed-rollers O, which receive the pieces of material fromthe table 16 after they have been moved by the feed-bar 60.

Each of the rollers 7 0 carries a pinion. 71, each pair of whichintermesh' with each other, and one of each pair arranged to mesh with agear wheel 72- which is operated in unison with one of the pinions 24012343.

In the practical operation of the machine, assuming the parts to beassembled asshown and a plurality of pieces of material stacked in thehopper, and further assuming power to be applied tothe pulley 22, theinitial operation is the rotation of the cam 68 which will move theplunger 65 in a direction to move the feed-bar toward the cutting andscoring tools. movement of the cam, the first pair of feedrollers 70will engage with the piece of material and continue its movement towardthe cutting and scoring tools. During the movement of the piece of maofi Simultaneously with the 121281, the set of transverse resizing lsengages the piece of material and shears it, the tools shown makQg atrue right angle cut-relative to the trcn of travel of the piece ofmaterial. (The out just referredto is the cut F in the diagram shown inFig. 8.)

Asthe piece of material is further moved. the first set of transversescoring tools 36 engages with the material and indents or impressestherein score lines extending parallel with the initial resizing cut.(These score lines are indicated by C in the diagram shown in Fig. 8.)

The tool-carrier .which carries the initial transverse scoring toolsalso carries cutting knives which are in all particulars the same as theresizing knives, except for length, and at the same time the scoringtools are per forming the initial transverse scores C the transversecutting knives perform the cuts A and B. (These cuts A and B are shownin the diagram in Fig. 8.)

Immediately preceding the. initial scor-- ing and tran'sversecutting,the forward margin of the piece of material has been enaged by ,a secondpair of feed-rolls for its urther advancement and in order that the Ypiece of material may be held smooth at the points of operation.

The'piece of material is then operated upon by the second set oftransverse scoring and cutting tools, whose construction and arrangementis identically like the construction and arrangement of the transversescor- "i'ng and cutting tools just described. These scoring and cuttingtools perform the oper-. ations of the second transverse scores C andthe second transverse cuts A and B.

The piece of material, in its advancement, is then engaged by a thirdsetof feed-rolls which guides the piece of material to be acted upon bythe longitudinal cutting tools 47, in order to perform the initiallongitudinal cuts D.

Simultaneously with this longitudinal cutting, the longitudinal resizingtools it .the lengthy of the piece, and the second set of longitudinalcutting devices performs the second or terminal longitudinal cuts D.

During the interim between the initial longitudinal cut D and theterminal longitudinal cut D, the companion scoring flanges perform theoperation of making the longitudinal scores E.

In view of the fact that motion is applied to a shaft which is geared toboth feeding and scoring and cutting devices, it is obvious that theiroperations are accurately timed relative to each other. so that. whenthe machine is once adjusted to a given size ot blank, the resizing.scoring and cutting is identical in all blanks supplied to the machine.

In arranging the parts. as shown and described. a single machineaccomplishes the act of forming a complete blank from which a box may befolded.

In view of the fact that all of the cutting and scoring tools areadjustable in two directions, the same machine is adapted to form blanksof various sizes and character.

In view of the fact that all of the operating devices may be arcuallyadjusted relative to each other, the timing of any one device may bealtered at will relative to the travel of the piece of material actedupon. I claim:

1. In a machine of the class described, a

pair of companion knives rcvoluble upon an axis at right angles to themachine, the cutting edge of each knife arranged non parallel with saidaxis. there being a recess in the body of each knife contiguous to thecutting edge, in order to provide a clearance for the companion knife.

2. In a machine of the class described, a driven shaft, a disk axiallyadjustably sccured to the shaft, there being an annular recess intheside of the disk, a ring seated in said recess. the peripheralmargins of said disk and ring forming companion scoring flanges, therebeing a recess in said ring, a cutting tool detachably secured in thereccss of said ring with its outer edge projecting beyond the scoringflanges, and a clamping plate detachably secured to the disk over saidring.

In testimony whereof, I have signed my name to this specification, inpresence of two subscribing witnesses.

MICHAEL P. DAVEN. Witnesses: I

' J. Ross JOHNSON,

C. W. ROBINSON.

